Improved priming product dispensing device and associated filling process.

Abstract

The invention relates to a product dispensing device, comprising: an orifice communicating with the outside of the device, a stopper, a stopper housing; the device being arranged to, at least in the absence of the stopper, evacuate the fluid and / or gas through the stopper housing from a fluid pocket and / or reservoir to the orifice.The stopper housing comprises at least one main part, and the stopper comprises at least one main part. The main part of the stopper housing is arranged to accommodate the main part of the stopper, such that in a first insertion position of the stopper into the housing from the orifice, fluid and / or gas can escape from the housing through the orifice along and / or around the stopper. In a second insertion position of the stopper into the housing from the orifice, in which the stopper is inserted further into the housing than in the first insertion position, fluid and / or gas can no longer escape from the housing through the orifice along and / or around the stopper. See Figure 5 for abbreviations.

Description

Title of the invention: Improved priming product dispensing device and associated filling method. technical field

[0001] The present invention relates to a product dispensing device. It also relates to an associated filling method. Prior art

[0002] Devices for distributing product or fluid are known.

[0003] However, filling these devices according to the state of the art can pose certain priming problems in that it can be difficult to expel a maximum of gas or air during filling before first use.

[0004] The object of the present invention is to solve this problem. Description of the invention

[0005] This objective is achieved with a product dispensing device, comprising: - An opening communicating with the outside of the device, - A cork, - A plug housing,

[0006] the device being arranged to, at least in the absence of the cap, evacuate the fluid and / or gas through the cap housing from a fluid pocket and / or reservoir to the orifice

[0007] characterized in that:

[0008] the plug housing comprises at least one main part,

[0009] the stopper comprises at least one main part,

[0010] the main part of the stopper housing being arranged to accommodate the main part of the stopper, such that: - in the initial insertion position of the cap into the cap housing from the opening, fluid and / or gas may escape from the cap housing through the opening along and / or around the cap, and - in a second insertion position of the cap in the cap housing from the orifice, for which the cap is pushed further into the cap housing than in the first insertion position, fluid and / or gas can no longer escape from the cap housing through the orifice along and / or around the cap.

[0011] The main part of the stopper housing may include a large section and a small section smaller than the large section, the large section being oriented towards the orifice and the small section being oriented towards the pouch and / or reservoir.

[0012] The main part of the stopper may include a lateral cavity arranged for the passage of fluid and / or gas along and / or around the stopper in the first insertion position of the stopper and for airtight storage of fluid and / or gas in the second insertion position of the stopper.

[0013] The lateral cavity can be defined between two sealing rings carried by the main part of the cap.

[0014] According to the invention: - The plug housing may comprise the following two communicating parts: • its main part oriented towards the opening • a thinned part oriented towards the pouch and / or reservoir, the thinned part having a smaller cross-section than the main part of the cap housing.

[0015] and / or - The cap may comprise two adjoining parts: • its main part • a finger, the finger having a smaller cross-section than the main part of the cork.

[0016] Preferably, the finger of the cap can be arranged to fit into the thinned part of the cap housing, so that, at least in the first position of insertion of the cap, the finger expels fluid and / or gas from the thinned part towards the orifice.

[0017] According to the invention: - the opening can be an outlet of the device - the main part of the cap may carry a dispensing valve and / or the The main part of the cap housing houses a dispensing valve, which in an open state allows fluid to pass from inside the bag and / or reservoir to the outlet, and, in a closed state, does not allow fluid to pass from inside the bag and / or reservoir to the outlet.

[0018] The device according to the invention may include the pouch and a distribution orifice which connects the internal volume of the pouch to the internal volume of a channel.

[0019] The bag can be a deformable bag having an internal volume arranged to contain the fluid.

[0020] The cap housing may include clipping or snapping means arranged to hold the cap in its first insertion position.

[0021] The device according to the invention may include the pouch and the reservoir, and may further include a feed orifice that connects the internal volume of the pouch to the internal volume of the reservoir, and a feed valve that in a state When open, it allows fluid to pass from the reservoir into the inside of the bag, and, when closed, it does not allow fluid to pass from the reservoir into the inside of the bag.

[0022] According to yet another aspect of the invention, a method for filling a device according to the invention is proposed, in which: - The pouch and / or reservoir is filled with fluid, and at least partially the cap housing, while the cap is inserted in its first insertion position in the cap housing or is not inserted in the cap housing at all, and: • Fluid and / or gas is drawn up from the bag or reservoir towards the orifice, preferably by squeezing the bag and / or reservoir to reduce its volume, and / or • The cap is pushed into the cap housing so as to move it from its first insertion position to its second insertion position.

[0023] According to the invention: • Fluid and / or gas can be drawn up from the pouch or reservoir towards the orifice, • Then, a level of fluid or plug in the plug housing can be detected by a sensor, preferably optical or ultrasonic, above a predefined threshold. • then you can push the cap into the cap housing so as to move it from its first insertion position to its second insertion position.

[0024] According to the invention: • Fluid and / or gas can be drawn up from the pouch or reservoir towards the orifice, preferably by squeezing the pouch and / or reservoir to reduce its volume, and preferably while the stopper is not yet inserted into the stopper housing, • Then, a fluid level can be detected in the cap housing by a sensor, preferably optical or ultrasonic, above a predefined threshold, preferably when the cap is not inserted into the cap housing at all. • then the stopper can be pushed into the stopper housing so that it moves from the outside of the housing to its first insertion position, so that the volume of gas in the housing replaced by the volume of the stopper and / or of fluid in the housing escapes from the stopper housing through the orifice along and / or around the stopper, • then you can push the cap into the cap housing so as to move it from its first insertion position to its second insertion position.

[0025] According to the invention: • Fluid and / or gas can be drawn up from the pouch or reservoir towards the orifice, preferably by squeezing the pouch and / or reservoir to reduce its volume and, while the stopper is inserted in its first insertion position in the stopper housing, causing the volume of gas in the housing to be replaced by the volume of the stopper and / or fluid in the housing to escape from the stopper housing through the orifice along and / or around the stopper, • Then, a sensor, preferably optical or ultrasonic, can detect the level of the cap above a predefined threshold when the cap is inserted in its initial position in the cap housing. • then you can push the cap into the cap housing so as to move it from its first insertion position to its second insertion position. Description of the figures and methods of implementation

[0026] Other advantages and features of the invention will become apparent upon reading the detailed description of implementations and embodiments, which are by no means limiting, and the following accompanying drawings:

[0027] [Fig-1] [Fig. 1] is a cross-sectional profile view of a first embodiment of the device according to the invention assembled,

[0028] [Fig.2] [Fig.2] is a cross-sectional profile view of the first embodiment of the device according to the invention during assembly according to a first embodiment of the filling process according to the invention,

[0029] [Fig.3] [Fig.3] is a cross-sectional profile view of the first embodiment of the device according to the invention during assembly according to the first embodiment of the filling process according to the invention,

[0030] [Fig.4] [Fig.4] a detailed perspective view of the stopper of a second embodiment of the device according to the invention, which is the preferred embodiment of the invention,

[0031] [Fig.5] [Fig.5] is a cross-sectional profile view of the second embodiment of the device according to the invention during assembly according to a second embodiment of the filling process according to the invention,

[0032] [Fig.6] [Fig.6] is a cross-sectional profile view of the second embodiment of the device according to the invention during assembly according to the second embodiment of the filling process according to the invention,

[0033] [Fig.7] [Fig.7] is a cross-sectional profile view of the second embodiment of the device according to the invention during assembly according to the second embodiment of the filling process according to the invention,

[0034] [Fig.8] [Fig.8] is a cross-sectional profile view of a third embodiment of the device according to the invention assembled,

[0035] [Fig.9] [Fig.9] is a cross-sectional profile view of a fourth embodiment of the device according to the assembled invention,

[0036] [Fig. 10] [Fig. 10] is a cross-sectional profile view of the fourth embodiment of the device according to the invention during assembly according to the first embodiment of the filling process according to the invention,

[0037] [Fig. 11] [Fig. 11] is a cross-sectional profile view of the fourth embodiment of the device according to the invention during assembly according to the second embodiment of the filling process according to the invention,

[0038] These embodiments being in no way limiting, variants of the invention may be considered, in particular, comprising only a selection of features described or illustrated hereafter, isolated from the other described or illustrated features (even if this selection is isolated within a sentence including these other features), if this selection of features is sufficient to confer a technical advantage or to differentiate the invention from the prior art. This selection includes at least one preferably functional feature without structural details, and / or with only a portion of the structural details if this portion alone is sufficient to confer a technical advantage or to differentiate the invention from the prior art.

[0039] We will first describe, with reference to figures 1 to 3, a first embodiment of device 101 according to the invention and its first embodiment of filling process.

[0040] Device 101 comprises: - An opening 10 communicating with the outside of the device 101, - A 23mm cork, - A housing unit with 13 traffic jams.

[0041] The device 101 is arranged to, at least in the absence of the plug 23, evacuate the fluid 7 and / or gas through the plug housing 13 from a pocket 2 or a reservoir 6 of fluid 7 to the orifice 10.

[0042] Fluid 7 is a dispensing fluid, preferably comprising a liquid and / or a gel and / or a cream and / or an oil and / or an emulsion.

[0043] The gas is preferably air.

[0044] The plug housing 13 includes at least one main part 131.

[0045] The plug 23 comprises at least one main part 231.

[0046] The main part 131 of the plug housing 13 is arranged to accommodate the main part 231 of the plug 23, such that: - in a first insertion position (illustrated in [Fig. 3]) of the plug 23 in the plug housing 13 from the orifice 10, fluid 7 and / or gas may escape from the plug housing 13 through the orifice 10 along and / or around the plug 23, and - in a second insertion position (illustrated in [Fig.1]) of the plug 23 in the plug housing 13 from the orifice 10, for which the plug 23 is pushed further into the plug housing 13 than in the first insertion position, fluid 7 and / or gas can no longer escape from the plug housing 13 through the orifice 10 along and / or around the plug 23.

[0047] In the present description, all sections are areas defined in cutting planes perpendicular to a direction of insertion of the plug 23 into the housing 13.

[0048] The main part 131 of the plug housing 13 comprises a large section 141 and a small section 142 smaller than the large section 141, the large section 141 being oriented towards the orifice 10 and the small section 142 being oriented towards the pocket 2 or reservoir 6. Preferably the area of ​​the section 141 is at least 3% larger than the area of ​​the section 142, preferably the sections 141 and 142 are cylindrical and the difference between the average diameter of the sections 141 and 142 is at least 0.1mm.

[0049] The main part 231 of the cap 23 includes a lateral cavity 1 arranged for the passage of fluid 7 and / or gas along and / or around the plug 23 in the first insertion position of the plug 23 and for airtight storage of fluid 7 and / or gas in the second insertion position of the plug 23.

[0050] The volume of the lateral cavity 1 is preferably greater than 10 microliters, preferably greater than 20 microliters, or even greater than 30 microliters. The ratio between the volume of the lateral cavity 1, expressed in microliters, and the surface area of ​​the large cross-section 141, expressed in mm², is preferably greater than 0.4, and even preferably greater than 1.

[0051] The lateral cavity 1 is defined between two sealing rings or grooves 11,12 carried by the main part 231 of the plug 23.

[0052] These two rings 11,12 are separated by a distance d of at least 2 or 3 mm and / or at least one third of the average diameter of the plug 23 and / or the diameter of the opening or the largest dimension of the section (perpendicular to its direction of elongation) of the opening 10.

[0053] Among these two rings or gadroons 11 and 12, the ring or gadroon 12 is arranged to be inserted into the housing 13 before the ring or gadroon 11.

[0054] The plug housing 13 comprises the following two communicating parts: • its main part 131 oriented towards the orifice 10 • a thinned portion 132 oriented towards the pocket 2 or reservoir 6, the portion thinned 132 having a smaller cross-section than the main part 131 of the plug housing 13.

[0055] The plug 23 comprises the following two adjoining parts: • its main part 231 • a finger 232, the finger 232 having a smaller cross-section than the main part 231 of the plug 23.

[0056] The finger 232 of the plug 23 is arranged to fit into the thinned part 132 of the plug housing 13, so that, at least in the first insertion position of the plug 23, the finger 232 expels fluid 7 and / or gas from the thinned part 132 towards the orifice 10.

[0057] Device 101 includes an output 24.

[0058] The device 101 includes a distribution valve 5 which, in an open state, allows fluid 7 to pass from inside the pocket 2 or reservoir 6 to the outlet 24, and, in a closed state, does not allow fluid 7 to pass from inside the pocket 2 or reservoir 6 to the outlet 24.

[0059] In the particular case of device 101, the orifice 10 is provided with the outlet 24 of the device when the plug 23 is in its second insertion position.

[0060] In the particular case of device 101, the main part 231 of the cap 23 carries the distribution valve 5 and / or the main part 131 of the cap housing 13 houses the distribution valve 5.

[0061] The pocket 2 is a deformable pocket having an internal volume arranged to contain the fluid 7.

[0062] The reservoir 6 is arranged to contain fluid 7.

[0063] The reservoir 6 is also flexible and includes a flexible wall 14. Thus, the reservoir 6 is arranged to deform by decreasing its volume as it empties of fluid 7.

[0064] The wall 14 (which forms a bag) is fixed to an end piece 89.

[0065] This end piece 89 is the part which includes the housing 13.

[0066] This end piece 89 is the part which includes the bottom wall 21.

[0067] The cap housing 13 includes clipping or snapping means arranged to hold the cap 23 in its first insertion position.

[0068] The device 101 includes a distribution orifice 51 which connects the internal volume of the pocket 2 to the internal volume of a channel (this channel being the housing 13 in the particular case of the device 101):

[0069] - housing valve 5 (as illustrated in [Fig. 1]) and / or sealed by a operculum removable or removable shutter (case not illustrated), and

[0070] - ending with outlet 24 (which can therefore be blocked by a cover or removable shutter).

[0071] The device 101 includes a feed port 41 which connects the internal volume of the pouch 2 to the internal volume of the reservoir 6.

[0072] The device 101 includes a supply valve 4 which, in an open state, allows fluid 7 to pass from the reservoir 6 into the inside of the bag 2, and, in a closed state, does not (or almost does not) allow fluid 7 to pass from the reservoir 6 into the inside of the bag 2 (preferably, this supply valve 4 is not perfectly sealed and may allow a slight backflow in its closed state.).

[0073] The deformable pocket 2 comprises: - a deformable or movable wall 22 that can be pressed to reduce the internal volume of the pouch, and - a rigid and non-deformable bottom wall 21.

[0074] Pocket 2 is arranged to: - when pressure is applied to wall 22: • decrease the internal volume of pocket 2, • by overpressure, open the distribution valve 5 and / or release fluid 7 from bag 2 towards outlet 24, • In case of overpressure, close the supply valve 4 if present - when pressure is stopped on wall 22: • increase the internal volume of pocket 2 to its maximum equilibrium internal volume in the absence of force exerted on wall 22, • by vacuum, open the supply valve 4 if present and / or draw fluid 7 from the reservoir 6 into the internal volume of the bag 2, • by vacuum, close the distribution valve 5

[0075] The outlet 24 of the device 101 is equipped with a spray nozzle 26.

[0076] This nozzle 26 is carried inside the plug 23.

[0077] Outlet 24 is located in the vertical axis connecting the pouch to the reservoir.

[0078] In other words, the device 101 is arranged so that the fluid 7 exits vertically from the outlet 24.

[0079] With further reference to Figures 1 to 3, a first embodiment of the filling process for device 101 comprises the following steps: - the pouch 2 and / or the reservoir 6 are filled with fluid 7, and at least partially the cap housing 13, while the cap 23 is inserted in its first insertion position in the cap housing 13 or is not inserted at all in the cap housing 13, then: • pressure is applied to the pouch 2 and / or the reservoir 6 in order to reduce its volume and force fluid 7 and / or gas upwards from the pouch 2 or reservoir 6 towards the orifice 10, by applying a direct or indirect force 18 to the pouch 2 or reservoir 6, and / or • The cap 23 is pushed into the cap housing 10 so as to move it from its first insertion position to its second insertion position.

[0080] More precisely: • pressure is applied to the pouch 2 and / or the reservoir 6 (by force 18) so as to reduce its volume and cause fluid 7 and / or gas to rise from the pouch 2 or reservoir 6 towards the orifice 10, preferably while the plug 23 is not at all inserted into the plug's housing 13, • The support of the previous step is carried out until a level of fluid 7 is detected in the stopper housing 13 by a sensor 9, preferably optical or ultrasonic, above a predefined threshold, preferably while the stopper 23 is not at all inserted into the stopper housing 13; as illustrated in [Fig. 2], this threshold is preferably reached when the fluid 7 has completely filled part 132 and begins to fill part 131. In practice, the sensor 9 is arranged to detect this threshold by targeting a surface 15 and detecting a transformation of this initially bare surface 15 which becomes covered with the fluid 7 coming from the pocket 2 or the reservoir 6; the sensor 9 detects the level of fluid 9 through the orifice 10; • then the plug 23 is pushed into the housing 13 (by an insertion force 19 of the plug 23) so as to move it from the outside of the housing 13 to its first insertion position as illustrated in [Fig.3], so that the volume of gas in the housing 13 is replaced by the volume of the plug 23 (more precisely the volume of the part of the plug 23 that enters the housing of the plug 13) and / or of fluid 7 in the housing 13 and escapes from the housing 13 of the plug through the orifice 10 along and / or around the plug 23, • then, once this threshold is reached and / or detected, we stop pressing on the pocket 2 or the housing, and we push the stopper 23 into the stopper housing 13 (by force 19) so as to move it from its first insertion position to its second insertion position as illustrated in [Fig.1].

[0081] The passage of the plug 23 from its first insertion position to its second insertion position includes a crossing, by the ring or groove 12, of a step or transition 143 separating the large section 141 from the small section 142. When the ring or groove 12 reaches the level of this step or transition 143, the ring or groove 12 is preferably in contact with the fluid 7.

[0082] It is noted that for the first insertion position and for the second insertion position of the plug 23, the finger 232 is at least partially inserted into the thinned part 132, which allows;

[0083] - a guide for the plug, and

[0084] - a backflow of fluid 7 towards outlet 24 and / or the orifice during the passage of the plug from its first insertion position to its second insertion position.

[0085] For the first insertion position of the plug 23, the finger 232 is partially inserted into the thinned part 132.

[0086] For the second insertion position of the plug 23, the finger 232 is completely inserted into the thinned part 132.

[0087] The optical sensor may include transmitting and receiving optical fibers or even a camera.

[0088] In an unrepresented variant, the bag 2 and / or the reservoir 6 are filled through the orifice 10 from outside the device with filling means so as to bring fluid 7 up towards the orifice 10.

[0089] We will now describe, with reference to Figures 4 to 7, a second embodiment of device 102 according to the invention and its second embodiment of filling process, solely for their differences from the first embodiment of device 101 and process of Figures 1 to 3.

[0090] Device 102 differs from device 101 in that it includes at least one stop 27, 28 on the plug 23 and / or on a wall delimiting the internal volume of the housing 13.

[0091] Typically, device 102 comprises: - a stop 27 (preferably mounted on a wall delimiting the internal volume of the housing 13) arranged to prevent the plug from moving from its first insertion position to its second insertion position as long as the force 19 (directed downwards in [Fig.5]) is not beyond an insertion force threshold, - a stop 28 (preferably carried by the plug 23, as illustrated in [Fig.4]) arranged to prevent the plug 23 from moving from its first insertion position to a position where it is completely out of the housing 13 as long as the force 19 (which this time would be directed upwards in [Fig.5]) is not beyond an extraction force threshold.

[0092] The second embodiment of the filling process according to the invention comprises the following steps: • the plug 23 is inserted into its first insertion position (by force 19), as illustrated in [Fig.5], the plug 23 being prevented from fully entering the housing 13 until its second insertion position by the stop 27 because at this stage the force 19 exerted on the plug 23 is less than the insertion force threshold, • then pressure is applied to the pouch 2 and / or the reservoir 6 (by force 18) so as to decrease its volume and cause fluid 7 and / or gas to rise from the pouch or reservoir towards the orifice 10, while the plug 23 is inserted in its first insertion position into the plug housing 13, so that the volume of gas in the housing 13 is replaced by the volume of the plug 23 (more precisely the volume of the part of the plug 23 which enters the plug housing 13) and / or fluid 7 in the housing 13 and escapes from the plug housing 13 through the orifice 10 along and / or around the plug 23; the upper end of the plug 23 is detected by the sensor 9 as being at a level hl as illustrated in [Fig.5]. • The support from the previous step is maintained until the sensor 9, preferably optical or ultrasonic, detects a level of the plug above a predefined threshold h2, while the plug 23 is inserted in its first insertion position into the plug's housing 13; as illustrated in [Fig. 6], the act of pressing causes the fluid 7 to rise in the housing 13, which raises the plug 23 from its level hl to its level h2; the plug 23 is prevented from completely exiting the housing 13 by the stop 28 because the force exerted by the fluid 7 (Archimedes' pressure) on the plug 23 is less than the extraction force threshold, • Then, once the threshold h2 is reached and / or detected, we stop pressing on the pocket 2 or the housing, and we push the stopper 23 into the stopper housing 13 (by force 19) so as to move it from its first insertion position to its second insertion position, as illustrated in [Fig.7].

[0093] In this embodiment the optical sensor may include a transmitting fiber and a receiver, the end of the plug 23 which carries the output 24 being placed between the transmitting fiber and the receiver.

[0094] We will now describe, with reference to [Fig.8], a third embodiment of device 103 according to the invention and filling method, solely for their differences from the first embodiment of device 101 and method of figures 1 to 3.

[0095] In this embodiment, parts 132 and 232 are absent.

[0096] The outlet 24 is located laterally with respect to a vertical axis connecting the pouch 2 to the reservoir 6.

[0097] In other words, the device 103 is arranged so that the fluid 7 exits substantially (within 20 degrees) horizontally from the outlet 24.

[0098] The wall 14 is not flexible and does not form a bag but is a rigid wall in which a piston slides which will decrease the internal volume of the reservoir 6 as the fluid 7 exits the reservoir 6.

[0099] The filling process of the device 103 may include the same steps as the first embodiment of the filling process described with reference to Figures 1 to 3.

[0100] However, the sensor 9 detects the fluid level 9 not through the orifice 10, but through the part 89 (also called cap 89 in this embodiment, which forms the internal walls of the housing 13) of the device 103 which is transparent to the radiation used by the sensor 9 so as to make the surface 15 and / or the level 30 of the upper fluid surface 7 visible to the sensor 9. Preferably, within the same device 103, there is a part 89 transparent to the radiation used by the sensor 9 and a surface 15 not transparent to the radiation used by the sensor 9.

[0101] We will now describe, with reference to Figures 9 to 11, a fourth embodiment of device 104 according to the invention and its filling method. Device 104 will be described solely for its differences from the first embodiment of device 101 shown in Figures 1 to 3.

[0102] In this embodiment, parts 132 and 232 are absent.

[0103] Outlet 24 is located laterally with respect to a vertical axis connecting pocket 2 to reservoir 6.

[0104] In other words, the device 104 is arranged so that the fluid 7 exits horizontally from the outlet 24.

[0105] In the particular case of device 104, the orifice 10 is distinct from the outlet 24 of the device.

[0106] In the particular case of device 104, the main part 231 of the cap 23 does not carry and does not house the distribution valve 5.

[0107] The method for filling device 104 may include; - As illustrated in [Fig. 10], the same steps as the first embodiment of the filling process described with reference to Figures 1 to 3; note, - As illustrated in [Fig.1 1], the same steps as the second embodiment of the filling process described with reference to figures 4 to 7.

[0108] Of course, the invention is not limited to the examples just described and many modifications can be made to these examples without departing from the scope of the invention.

[0109] For example, for all the embodiments described above:

[0110] - it is noted, with reference to [Fig. 10], that the set of embodiments can do without the surface 15; indeed, the sensor 9 can be arranged to visualize and / or monitor the fluid level 7 in the device according to the invention and to track the progression of this level, and / or

[0111] - part 89 can be made transparent to the radiation used by sensor 9 and a surface 15 that is not transparent to the radiation used by the sensor 9, and a sensor that visualizes the surface 15 through the part 89, and / or

[0112] - part 89 can be made transparent to the radiation used by sensor 9, and a sensor that visualizes the level 30 of fluid 7 through part 89, and / or

[0113] - the large section 142 is not necessarily constant and / or the small section 141 is not not necessarily constant. For example, we can have a large section 142 that is a frustum conic tapering towards the small section 141 and / or a small section 141 that is a frustum conic tapering towards the large section 142. Similarly, the transition 143 does not necessarily include a step, but can be at an angle between the large section 142 and the small section 141 if at least one of these two sections is a frustum conic, or can be perfectly straight without discontinuity if the large section 142 and the small section 141 are both frustum conics with the same apex angle, and / or

[0114] - The distribution valve 5 may be absent, in particular, the valve 5 may be replaced by a removable lid or removable shutter, and / or - The cap 23 can be screwed into the housing 13.

[0115] When the sensor is arranged to see the surface 15 or 30 through the orifice 10 or the outlet 24, the radiation used by the sensor 9 has any frequency which may be in the infrared, visible, ultraviolet, ultrasound, X-ray, etc.

[0116] When the sensor is arranged to see the surface 15 or 30 through the part 89, the radiation used by the sensor 9 typically has a frequency greater than 16,000 Hertz; preferably, the radiation used by the sensor 9 is typically ultrasound (typically having a frequency between 16,000 Hertz and 10,000,000 Hertz) or X-rays (typically having a frequency between 1016 Hz and 1020 Hz).

[0117] Of course, the different features, forms, variants and embodiments of the invention can be combined with each other in various ways insofar as they are not incompatible or mutually exclusive. one another. In particular, all the variants and embodiments described above can be combined with each other.

Claims

1. Demands Product dispensing device, comprising: - An opening (10) communicating with the outside of the device, - A cork (23), - A plug housing (13), the device being arranged to, at least in the absence of the plug, evacuate the fluid and / or gas through the plug housing from a fluid pocket (2) and / or reservoir (6) to the orifice characterized in that: the plug housing (13) includes at least one main part (131), The cap comprises at least one main part (231), the main part of the cap housing being arranged to accommodate the main part of the cap, such that: - in a first insertion position of the plug (23) in the plug housing (13) from the orifice (10), fluid and / or gas may escape from the plug housing (13) through the orifice along and / or around the plug, and - in a second insertion position of the plug (23) in the plug housing (13) from the orifice (10), for which the plug is pushed further into the plug housing (13) than in the first insertion position, fluid and / or gas can no longer escape from the plug housing (13) through the orifice along and / or around the plug (23) the device comprising the pouch (2) and a distribution orifice (51) which connects the internal volume of the pouch to the internal volume of a channel the pouch (2) being a deformable pouch having an internal volume arranged to contain the fluid characterized in that: - the stopper housing comprises the following two communicating parts: • its main part (131) oriented towards the orifice (10) • a thinned part (132) oriented towards the pouch (2) and / or reservoir (6), the thinned part having a smaller cross-section than the main part of the stopper housing (13). - The stopper comprises the following two contiguous parts: • its main part (231) • a finger (232), the finger having a smaller cross-section than the main part of the stopper, the finger (232) of the stopper (23) being arranged to fit into the thinned part (132) of the stopper housing, so that, at least in the first insertion position of the stopper (23), the finger (232) expels fluid and / or gas from the thinned part towards the orifice (10).

2. Device according to claim 1, characterized in that the main part of the stopper housing (131) comprises a large section (141) and a small section (142) smaller than the large section (141), the large section (141) being oriented towards the orifice (10) and the small section (142) being oriented towards the pocket (2) and / or the reservoir (6).

3. Device according to claim 1 or 2, characterized in that the main part (231) of the stopper (23) comprises a lateral cavity (1) arranged for the passage of fluid and / or gas along and / or around the stopper (23) in the first insertion position of the stopper and for hermetic storage of fluid and / or gas in the second insertion position of the stopper.

4. Device according to claim 3, characterized in that the lateral cavity (1) is defined between two sealing rings (11, 12) carried by the main part (231) of the plug (23).

5. Device according to any one of the preceding claims, characterized in that: - the orifice (10) is an outlet (24) of the device - the main part (232) of the cap carries a dispensing valve (5) and / or the main part of the cap housing carries a dispensing valve (5), which in an open state, allows passage of fluid from inside the bag and / or reservoir to the outlet, and, in a closed state, does not allow passage of fluid from inside the bag (2) and / or reservoir (6) to the outlet (24).

6. Device according to any one of the preceding claims, characterized in that the cap housing (13) includes clipping or snapping means arranged to hold the cap (23) in its first insertion position.

7. Device according to any one of the preceding claims, characterized in that it comprises the pouch and the reservoir, and further comprises a feed orifice (41) which connects the inner volume of the pouch (2) to the inner volume of the reservoir (6), and a feed valve (4) which, in an open state, permits passage of fluid from the reservoir into the interior of the pouch, and, in a closed state, does not permit passage of fluid from the reservoir into the interior of the pouch (2).

8. A method of filling a device according to any one of the preceding claims, wherein: - the pouch (2) and / or the reservoir (6) is filled with fluid while the stopper is inserted in its first insertion position in the stopper housing (13) or is not inserted in the stopper housing at all, and: • fluid and / or gas is drawn up from the pouch or reservoir towards the orifice, preferably by pressing on the pouch and / or the reservoir so as to reduce its volume, and / or • the stopper is pushed into the stopper housing (13) so as to move it from its first insertion position to its second insertion position.

9. The method according to claim 8, characterized in that: • fluid and / or gas is drawn up from the pouch or reservoir towards the orifice (10), • then a level of fluid or of the plug (23) in the plug housing (13) is detected by a sensor (9), preferably optical or ultrasonic, above a predefined threshold, • then the plug (23) is pushed into the plug housing (13) so as to move it from its first insertion position to its second insertion position.

10. A method according to claim 8 or 9, characterized in that: • fluid and / or gas is drawn up from the pouch or reservoir towards the orifice, preferably by pressing on the pouch and / or reservoir so as to reduce its volume, preferably while the stopper is not at all inserted into the stopper housing, • then a fluid level in the stopper housing is detected by a sensor (9), preferably optical or ultrasonic, above a predefined threshold, preferably while the stopper (23) is not at all inserted into the stopper housing (13), • then the stopper (23) is pushed into the stopper housing so as to move it from outside the housing to its first insertion position so that the volume of gas in the housing (13) is replaced by the volume of the stopper and / or fluid in the housing and escapes from the stopper housing through the orifice along and / or around the stopper (23),• then the cap is pushed into the cap housing (13) so as to move it from its first insertion position to its second insertion position.

11. A method according to claim 8 or 9, characterized in that: • Fluid and / or gas is drawn up from the pouch (2) or reservoir (6) towards the orifice (10), preferably by pressing on the pouch and / or reservoir so as to reduce its volume and, while the stopper is inserted in its first insertion position in the stopper housing, so that the volume of gas in the housing (13) is replaced by the volume of the stopper (23) and / or fluid in the housing and escapes from the stopper housing through the orifice along and / or around the stopper, • then a level of the cap is detected by a sensor (9), preferably optical or ultrasonic, above a predefined threshold, while the cap is inserted in its first insertion position in the cap housing then the cap is pushed into the cap housing 13) so as to move it from its first insertion position to its second insertion position.

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